What is the significance of the equipotentia I lines in EC G? They are used for medication dosage They show istribution during depolarization They indicate blood flow They measure heart rate

The significance of equipotential lines in ECG is that **they show the distribution of electrical activity during depolarization**. Here's why:* **Electrocardiogram (ECG):** An ECG records the electrical activity of the heart.* **Depolarization:** The process where the heart muscle cells become electrically charged, causing contraction.* **Equipotential Lines:** Lines on an ECG map that connect points of equal electrical potential.**How Equipotential Lines Work:*** When the heart depolarizes, the electrical potential changes across the heart muscle.* Equipotential lines connect points with the same electrical potential at a specific moment in time.* By analyzing the pattern of these lines, we can understand how the electrical activity spreads through the heart.**Significance:*** **Normal Heart Function:** Equipotential lines help identify normal patterns of electrical activity, indicating a healthy heart.* **Abnormal Heart Function:** Deviations in the equipotential lines can indicate problems like: * **Arrhythmias:** Irregular heartbeats * **Myocardial Infarction (Heart Attack):** Damage to heart muscle * **Conduction Defects:** Problems with the electrical pathways in the heart**Other Options:*** **Medication Dosage:** ECG is not directly used for determining medication dosage.* **Blood Flow:** ECG primarily measures electrical activity, not blood flow.* **Heart Rate:** While ECG can measure heart rate, equipotential lines are more focused on the spread of electrical activity.